Which two ratios form a proportion?
02:3 and 4:12
2:3 and 6:12
2:3 and 12:18
2:3 and 12:36

2: 3 and 12: 18 form a proportion

Step-by-step explanation:

When the two ratios are equal then they are said to be in proportion.

 ≠  

So 2:3 and 4:12 are not in proportion.

 ≠

So 2:3 and 6:12 are not in proportion

 ≠  

So 2:3 and 12:18 are in proportion

 ≠

So 2:3 and 12: 36 are not in proportion  

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

stop using this to cheat on home work

step-by-step explanation:

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